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Title |
Compressive Strength and Tensile Behavior of Ultra-High Performance Concrete and High-Ductile Cementless Composite
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Authors |
최정일(Jeong-Il Choi) ; 박세언(Se Eon Park) ; 이방연(Bang Yeon Lee) |
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DOI |
https://doi.org/10.11112/jksmi.2017.21.3.069 |
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Keywords |
복합재료 ; 압축강도 ; 연성 ; 인장거동 ; 초고성능 콘크리트 Cementless composite ; Compressive strength ; Ductility ; Tensile behavior ; UHPC |
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Abstract |
Ultra-high performance concrete and high ductile cementless composite are considered as promising construction materials because those exhibits higher performance in terms of high strength and high ductility. The purpose of this study is to investigate experimentally the compressive strength and tensile behavior of ultra-high performance concrete and high ductile cementless composite. A series of experiments including density, compressive strength, and uniaxial tension tests were performed. Test results showed that the compressive strength and tensile strength of alkali-activated slag based high ductile cementless composite were lower than those of ultra-high performance concrete. However, the tensile strain capacity and toughness of alkali-activated slag based high ductile cementless composite were higher than those of ultra-high performance concrete. And it was exhibited that a high ductility up to 7.89% can be attainable by incorporating polyethylene fiber into the alkali-activated slag based cementless paste.
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